Use of MEA Oxidation Intermediates to Monitor Oxidation Conditions During Post-Combustion Capture of CO2

4 Pages Posted: 4 Apr 2019 Last revised: 7 May 2019

See all articles by Alicia Reynolds

Alicia Reynolds

Federation University Australia - Carbon Technology Research Centre

T. Vincent Verheyen

Federation University Australia - Carbon Technology Research Centre

Abstract

Amine oxidation is a serious concern for post-combustion capture (PCC) of CO2 from fossil-fuel fired power stations. Organic acids are important oxidation products and have been measured in different ratios at different pilot plants. The concentrations of acetate, formate, glycolate and oxalate were measured in samples of degraded monoethanolamine from a variety of PCC pilot plants as well as laboratory-scale degradation experiments. The results suggest that the ratios of monoethanolamine oxidation intermediates (particularly glycolate and oxalate) have potential as process monitoring tools. Ultimately, ratios of these oxidation intermediates could be used to proactively manage and minimise oxidation of amine-based PCC absorbents by indicating the need for oxygen-scavenger addition or alerting operators to imminent increases in oxidative degradation rates.

Keywords: PCC: Amine degradation, GHGT-14

Suggested Citation

Reynolds, Alicia and Verheyen, T. Vincent, Use of MEA Oxidation Intermediates to Monitor Oxidation Conditions During Post-Combustion Capture of CO2. 14th Greenhouse Gas Control Technologies Conference Melbourne 21-26 October 2018 (GHGT-14) . Available at SSRN: https://ssrn.com/abstract=3365661

Alicia Reynolds (Contact Author)

Federation University Australia - Carbon Technology Research Centre ( email )

Northways Rd
Churchill, Victoria 3824
Australia

T. Vincent Verheyen

Federation University Australia - Carbon Technology Research Centre

Churchill, Victoria 3824
Australia

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